diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h
index daccd4b6d28ab0f89edbcc91227be776ffbb9b12..95912ecc65e1bb63af2f6991c08f485bfe938e40 100644
--- a/arch/alpha/kernel/proto.h
+++ b/arch/alpha/kernel/proto.h
@@ -36,7 +36,7 @@ extern void cia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 extern struct pci_ops irongate_pci_ops;
 extern int irongate_pci_clr_err(void);
 extern void irongate_init_arch(void);
-extern void irongate_machine_check(u64, u64, struct pt_regs *);
+extern void irongate_machine_check(u64, u64);
 #define irongate_pci_tbi ((void *)0)
 
 /* core_lca.c */
diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c
index 161d6915dc4973f69b53974a9e8bde0ebca47752..29ab7db81c30983cc113fcf5c51bea39375749f9 100644
--- a/arch/alpha/kernel/sys_titan.c
+++ b/arch/alpha/kernel/sys_titan.c
@@ -204,7 +204,7 @@ static struct hw_interrupt_type titan_irq_type = {
 };
 
 static irqreturn_t
-titan_intr_nop(int irq, void *dev_id, struct pt_regs *regs)                    
+titan_intr_nop(int irq, void *dev_id)
 {
       /*
        * This is a NOP interrupt handler for the purposes of